Cheapest return flights from Oakland to Seoul in September from $652

AirHint found the following cheapest return flights from Oakland (OAK) to Seoul (ICN) in September 2025 (see full year).

Return flights

27 Sep - 18 Oct Hawaiian Airlines
30 Sep - 28 Oct Korean Air
28 Sep - 12 Oct Hawaiian Airlines
29 Sep - 28 Oct Korean Air
24 Sep - 29 Oct Korean Air
29 Sep - 06 Oct Korean Air
24 Sep - 07 Oct Korean Air
24 Sep - 08 Oct Korean Air
19 Sep - 27 Sep Hawaiian Airlines
20 Sep - 26 Sep Hawaiian Airlines
20 Sep - 27 Sep Hawaiian Airlines
19 Sep - 26 Sep Alaska Airlines
26 Sep - 29 Sep Hawaiian Airlines
26 Sep - 05 Oct Hawaiian Airlines
24 Sep - 06 Oct Korean Air
19 Sep - 21 Sep Hawaiian Airlines

Also check the deals for one-way flights from Oakland to Seoul in September.

Skyscanner

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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